the boiler is what is called " Ketterling" 12yrs old it's only 3yrs off service life. I bet the system has never been treated so you will need a flush to correct. My advice change the boiler at same time do as a package - cheaper.
+ boiler rubbish anyway!
Dave carter
August 2010
Yeah call the service engineer...
it's not rocket science
July 2010
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